AT&T 6300 Service Manual page 39

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- - -
SYSTEM OVERVIEW
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~
~
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-
CD
PTOO
STROBE
CD
82
PT01
CD
~
PT03
W
PT05
CD
PT07
CD
BUSY
o::D I
J4
SLCT
CID
- ERROR~
- SLCTI 17
GNO
CID
CD
KB CLOCK
GNO @
CD
GNO
GNO
ill>
CD -
RESET
GNO
CID
m_
N _ C _
PARALLEl
CD
PT02
CD
PT04
m
PT08
C@ -
ACK
PE
ern-
_ ­
ill) -
AUTOFOX
ill) -
INIT
CID GNO
aID
GNO
®GNO
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GNO
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KEYBOARO PARALLEl SERIAL
J5 J4 J3
J2
82
COPlPONENT SlOE
J1
I : = :
~
GROUNO ..
~ ~
015
AO
CD
~
o
-BHE
W
~
o
-XPlEPllI
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CD
o
-XPlEPlR
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m
o -
XIOW
o::D
J1
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o
-XIOR
CID
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o -
EXTHRQ
GID
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EXTACK
CID
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OROY
CID
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o
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~
28 -PlB01S
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aID
BCCYL @
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0
XCLKB
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00
o
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34"------­
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38 CLK24
m
38
KB OATA
CD
GNO 1
+12V
CD
KB-TYP
WI
J5
NC
CD
CD
KEYBOARO
- CHCK
0
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BCROY
0
18
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~
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~
~
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PRGNO
RO
CTS
GNO
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RC
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CD
CD
W
CD
-rn
o::Dl
J3
CID
GID
CID
,CID
@
ill>
CID
SERIAL
TO
CD
RTS
CD
OSR
CD
OCO
m
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ern
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CID>-~OT:-::R'
aID
RI
® TXCLK
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Figure 2-6. Motherboard Connectors
2-23